From 0e0b5be856fff602513f940d00fe954faecdd905 Mon Sep 17 00:00:00 2001
From: IGI-111 <igi-111@protonmail.com>
Date: Thu, 27 Oct 2016 22:03:29 +0200
Subject: [PATCH] Added true terminal restoration (#66)

Using the "alternate screen" capability, the RawTerminal trait restores
the terminal in its previous state by sending the proper escape codes.
---
 src/raw.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/raw.rs b/src/raw.rs
index 20a07f9..39a0391 100644
--- a/src/raw.rs
+++ b/src/raw.rs
@@ -54,6 +54,8 @@ pub struct RawTerminal<W: Write> {
 #[cfg(not(target_os = "redox"))]
 impl<W: Write> Drop for RawTerminal<W> {
     fn drop(&mut self) {
+        write!(self, csi!("r")).unwrap();
+        write!(self, csi!("?1049l")).unwrap();
         use termios::set_terminal_attr;
         set_terminal_attr(&mut self.prev_ios as *mut _);
     }
@@ -100,7 +102,7 @@ pub trait IntoRawMode: Write + Sized {
 
 impl<W: Write> IntoRawMode for W {
     #[cfg(not(target_os = "redox"))]
-    fn into_raw_mode(self) -> io::Result<RawTerminal<W>> {
+    fn into_raw_mode(mut self) -> io::Result<RawTerminal<W>> {
         use termios::{cfmakeraw, get_terminal_attr, set_terminal_attr};
 
         let (mut ios, exit) = get_terminal_attr();
@@ -116,6 +118,7 @@ impl<W: Write> IntoRawMode for W {
         if set_terminal_attr(&mut ios as *mut _) != 0 {
             Err(io::Error::new(io::ErrorKind::Other, "Unable to set Termios attribute."))
         } else {
+            write!(self, csi!("?1049h")).unwrap();
             let res = RawTerminal {
                 prev_ios: prev_ios,
                 output: self,